Performance indicators of

Nuclear Power Plants in Slovakia

Update on MO34 completion

Robert Holy head of nuclear communications

Atominstitut Wien, 22 November 2013

Presence in

40 countries Installed capacity

97,839 MW Annual production

295.7 TWh EBITDA

16.7 bln. € Capex 2012-16

27.2 bln. € Customers

60.5 million Employees

73,702

Data as of 31.12.2012

Stock exchange

Enel is listed on the Milan stock exchange (~1.36 mln shareholders). 14 companies of the Group are listed on Milano, Madrid, Mosca, New York stock exchanges and in other Latin American countries

1

Slovenské elektrárne, subsidiary of Enel Enel world presence

Enel had more than 70 reactor-years experience as nuclear operator

Four nuclear power plants were operated by

Enel with an overall installed capacity of 1500

MW:

Latina (Gas-graphite 210 MW), from

1963

Garigliano (BWR 160 MW), from 1964

Trino Vercellese 1 (PWR 270 MW),

operating from 1965

Caorso (BWR 860 MW), from 1978

4 reactors were under construction in 1987:

Montalto di Castro (BWR 2 x 1000 MW)

Trino Vercellese 2 (PWR, 2 x 1000 MW)

International Nuclear Projects

Westinghouse AP1000

Rosatom VVER AES 2006

EPR, Flamanville 3: Engineering, Procurement, and Construction, 345.000 man-hours

Cernavoda 3&4

Support to Polish Nuclear Programme

Nuclear Research Projects

Small Modular Reactors, technology review and nuclear safety considerations

Nuclear Life Extensions, ageing analyses of structures and components

ENEL Experience in Nuclear Industry

SE’s Portfolio

NUCLEAR Bohunice NPP

1000 MW Mochovce NPP

940 MW

HYDRO 34 HPPs

2 399 MW

THERMAL Vojany TPP

880 MW Nováky TPP

518 MW

SOLAR 2 MW

34% 42%

24%

Share of sources (installed capacity)

NUCLEAR HYDRO THERMAL SOLAR

Thermal: Nováky and Vojany TPP co-burn biomass (wooden chips) with the goal to reach the share of 20% in EVO and up to 30% in ENO

Hydro: including Gabcikovo HPP

Production

15,4 TWh

4,2 TWh

2,6 TWh

0,02 TWh

Gross production

22,2 TWh

78%

SE’s generation

share in Slovakia

89%

CO2 free

6

20

16

20

00

20

10

19

90

19

80

19

70

A1 NPP V1 Unit 1

V1 Unit 2

V2 Unit 3

V2 Unit 4

MO Unit 1

MO Unit 2

MO Unit 3

MO Unit 4

A1 V1 V2 MO

Slovakia’s Nuclear History

Current Nominal Output EBO and EMO NPPs

7

EBO

EMO Power uprated:

2008

UNIT 1: 470 MWe

UNIT 2: 470 MWe

Power uprated:

2012

UNIT 3: 505 MWe

UNIT 4: 505 MWe

Original power:

440 MWe

83,20 85,10

86,39 88,11 88,81

92,29 92,27 93,47

78

83

88

93

98

2006 2007 2008 2009 2010 2011 2012 2013

BDG

Main KPIs - Nuclear Power Plants UCF / Outages

EBO 3

longer GO

(34 days)

- replacement of TG

control system

2006-2012:

- 596 days

+ 6,5 TWh

+ 328 MEUR 50 EUR/MWh

+ 262 MEUR 40 EUR/MWh

0

UCF [%]

Outages [Day]

Average Trend

SE Nuclear Operations and EU Comparison Benchmark by UCF

NETHERLANDS = 90% (Borssele)

(9x units) GERMANY = 89,21%

Best 3-year average at SE in 2012

92,48% at EMO1

(EBO+EMO) SLOVAKIA = 91,15%

HUNGARY = 89,01% (Pakš)

SLOVENIA = 91,82% (Krško)

OUR GOAL for 2014 = 93,5%

(Loviisa + Olkiluoto) FINLAND = 92,35%

(8x units) SPAIN = 88,41%

BULGARY = 88,06% (Kozloduy)

(6x units) SWITZERLAND = 87,97%

BELGIUM = 84,75% (Doel + Tihange)

(Dukovany+Temelín) CZECH REPUBLIC = 84,66%

FRANCE = 79,09% (58x units)

(10x units) SWEDEN = 71,22%

UNITED KINGDOM = 71,17% (16x units)

2019

2020

od spustenia

SPOLU3808,187 1897,745 153,000 114,350 1129,187 2012,095 SPOLU

k 31.12.2005 1586,30 64,80

62,6054,320

47,380

28,440

18,21017,293

17,944

90,000

52,554 48,67950,709

39,674

16,97112,858

0,00

10,00

20,00

30,00

40,00

50,00

60,00

70,00

80,00

90,00

100,00

2006 2007 2008 2009 2010 2011 2012

EBO

EMO

SE Nuclear Operations Performance Improvement Radwaste production optimisation

Rad-waste optimization is based on the original design modification, new technology for treatment implementation,

planning process and staff behavior improvement

Concentrates, m3

SE Nuclear Operations Performance Collective Radiation Exposure (CRE, man mSv)

11

Severe Accident Management EBO (2009-2013) and EMO (2011-2015)

Alternative electric power system

External cooling of RPV – In-vessel retention strategy

Containment hydrogen management - installation of PARs

Controlled depressurization of RCS in the onset of severe

accident

Containment vacuum breaker

Alternative coolant system: RPV corium flooding,

containment spray, spent fuel flooding

I&C capabilities needed for severe accident management

Mitigation of

Severe Accidents

Implementation of Safety Upgrading

Measures

Containment Hydrogen Management Installed passive hydrogen recombiners (~35 per unit)

Seismic re-evaluation of EMO12 - new values of seismic loading

Accu batteries monitoring in EBO

New fire brigade building in EBO and extending in EMO (seismic-

reinforced)

System batteries sequential interconnection (in case of blackout)

Analysis of vulnerability of external radiation monitoring laboratory

against extreme external hazard

Preparation and implementation of the third redundant system for

spent fuel pool heat removal at Mochovce Units 1 and 2

Stress Tests in SE Key activities to be completed by 2015

Unit 1

Unit 2

Presented by Jordan Mandalov, plant director Mochovce, april 2013

A

[MW]

[MW]

Mochovce NPP Operation Operational History (Jan – Sep 2013)

Performance Excellence Initiative

Equipment performance

Human performance

Equipment Reliability Initiative

SE Leadership Culture Initiative

Safety Culture Initiative

Knowledge Management

Human Performance Improvement

Presented by Jordan Mandalov, plant director Mochovce, april 2013

SE NPPs Projects of performance excellence

History of the Mochovce Project

1981 Site preparation works – start of construction

1990 - 1 Replacement of I&C (Siemens)

1991 – 5 Works halted

1995 Government decided on completion and funding model

1996 Completion contracts with vendors signed

1998 Unit 1 commissioning

1999 Unit 2 commissioning

2006 ENEL became majority (66%) shareholder of SE

2008 Restart of MO34 construction

Mochovce NPP Layout

Mochovce Units 3&4 („MO34“) Construction progress

3,8 bln. € budget

150 > contractors

at site

800 > SE / Enel experts

25 mil. manhours

to be worked

3525 workers (peak)

20

Largest single private

investment in Slovakia

1 of 3 NPPs under

construction in EU

Cooperation of SVK, CZE,

GER, ITA, FRA and RUS

companies

Mochovce Units 3&4 Safety first

ZERO ACCIDENTS FOR

542 DAYS* *

(SINCE MAY 2012)

Frequency index

0,42 (Enel I&I ref. in 2012: 1,08)

F.I. = (n. of accidents with sick

leave X 1.000.000) / total worked

hours

Severity index

0,016 (Enel I&I ref. in 2012: 0,049)

S.I. = (n. of days lost x 1.000) /

total worked hours

Man-hours worked:

23.793.759

Workers on site:

~ 3.525

Data as of 1 November 2013

Progress (as of August 31st 2013)

70%

84% 85%

50%

Overall Eng. Proc. Constr.

55% 55%

82%

24%

Overall Eng. Proc. Constr.

Un

it 3

U

nit

4

Mochovce Units 3&4 Project status

Main Project Milestones

• Cold Hydro Start Unit 3 Q2 2014

• Hot Hydro Start Unit 3 Q2 2014

• Fuel Loading Unit 3 Q3 2014

• COD Unit 3 Dec 2014

• COD Unit 4 Dec 2015

September

December

April

February

Cold Hydro

Hot Hydro

COD – Commercial Operation Date

Unit 3 Unit4

End of Primary Circuit Pressure Tests

Fuel Loading

20

13

Start test of Plant Full Scope Simulator

1st Energization of DCS*

Mechanical Completion of Feedwater and Main Steam Systems

October

1st Turbine on Turning Gear

*DCS: Disctributed Control System - Control, Protection and Supervision System of the Plant

November

1st Energization of DCS

End of Primary Circuit Pressure Tests

Mechanical Completion of Feedwater and Main Steam Systems

May

June

20

14

September

December

April

February

20

15

Cold Hydro

COD – Commercial Operation Date

Fuel Loading

November 1st Syncronization of the 1st TG

Mochovce 3&4 Schedule 2013 - 2015

VVER 440-213 Std

Mochovce 1-2

Mochovce 3-4 Approved

Basic Design

1992–98 2005–07

* An evolutionary design is an advanced design that achieves improvements over existing designs through small to moderate modifications, with a strong emphasis on maintaining design

proveness to minimize technological risks (ref.: IAEA-Tecdoc 936) ** Based on IAEA recommendations on nuclear safety improvements (IAEA-EBP-VVER-03, Safety Issues and their Ranking for VVER-440, model 213 NPP’s. April, 1996)

1st step of substantial design changes (**)

2nd step of substantial design changes

New design of Mochovce 3&4 is “Evolutionary Design” like most of the Gen-III reactors

nowadays under construction, since:

it is firmly based on proven and well-consolidated technology of currently-operating NPPs

uses such technology as starting point for the safety upgrade that puts strong emphasis on

maintaining proven design to minimize technological risks

Basic Safety Principles Evolutionary Design (*)

Mochovce 3-4 Including

EU Stress Tests Improvements

2011–13

EU Stress tests safety improvement measures

Seismic design basis: 0,15 g

Additional accident preventive measures

Severe accident mitigation measures

Light aircraft crash protection

Partial secondary containment function

State of the art supervision-control and protection system

Design for power up-rate (up to 535 MW gross; 111.7% of CTP) with minimal

HW change

Radioactive waste minimisation

Large number of design changes during detailed design development

Significant impact on design-procurement-construction activities

Mochovce 3&4 Key improvement features

better plant supervision, control

and protection

strong reduction of accident initiators

reduction of external hazards

reduction of internal hazards

Accident

prevention

Mochovce Units 3&4 Accident prevention measures

avoid core-melting

passive features for hydrogen control

protection of containment

function

additional diesel-generator for severe

accidents

Accident

mitigation

Mochovce Units 3&4 Accident mitigation measures

Mochovce Units 3&4 Containment

2x500 m3

extra water for containment spray will use

the existing spray lines

REACTOR HALL R

EA

CT

OR

AX

IS

VENTCENTRUM

CONTAINMENT SPRAY SYSTEM

existing ventilation lines of the RPV cavity will be used for cavity flooding.

Mochovce Units 3&4 Corium In-Vessel Retention – heat sink

30

High margins for all potential extreme natural events

Plant is capable to withstand loss of safety functions for extended period of time

Additional mobile means (mobile DG, firetruck) can supplement existing systems to ensure the plant is maintained in safe conditions

Adequate systems and procedures are present to cope with Severe Accident scenarios to prevent or minimise radioactive releases

Plant safety margins can be further enhanced through dedicated safety improvements

Mochovce Units 3&4 Stress tests results

• Management of Project

• Management of Overall Project Schedule

• Budget and Cost Control

• Health, Safety and Environment

• Design Authority (INSAG 19, Act 541/04, Decree 50 and

56/06)

• Engineering Review and Approval

• Interface Management

• Quality Plans for Classified Equipment approval

(UJD)

• Coordination of Construction

• Commissioning

• Management of Licensing activities

ROLE OF ARCHITECT ENGINEER Investor Owner Operator Architect Engineer

Mochovce Units 3&4 Role of Slovenské Elektrárne – ENEL

Mochovce 3&4 Project Team

established to act as Architect Engineer for the Project

Design Author Supervision

NUCLEAR ISLAND MAIN CONTRACTS

EPCM CONTRACTOR

C1

CONTRACTORS

Slovenske Elektrarne a.s.

BALANCE OF PLANT BOP Constr.– Simulator - Site Services – Insurance and others

Contractor 1

Contractor 2

Contractor N Safety Board

NUCLEAR ISLAND OTHER CONTRACTS

C N1 * C Nn *

CONVENTIONAL ISLAND

C2 C3

Outsourc. for Engineering

Constr./Commiss. support

Primary

syst. ECCS

Radw. Ventil.

Decont

Main

I&C

Main Contractor / Architect Engineer

Civil

works

Mochovce Units 3&4 Project organisation scheme

55,3%

20,8%

8,1% 7,8%

2,1% 1,9% 1,7% 0,9% 0,9% 0,6%

SK CZ IT DE RU BG FR US CA others

Mochovce Units 3&4 Contracts awarded by geographic area

Committed costs:

98,8% of total budget

Budget 2,861 mld. without strategic spareparts was increased to 3,327 mld.

Mochovce Units 3&4 Transport of Unit 4 Reactor Pressure Vessel

Mochovce Units 3&4 End of Primary Loop Welding Unit 4

Mochovce Units 3&4 Individial tests of Unit 3 LV/MV Cabinets

Mochovce Units 3&4 Completion of Mechanical Erection of Unit 3 Main Steam and Feedwater Systems

38

Mochovce Units 3&4 Steam turbine TG42

Mochovce Units 3&4 110 kV switchgear station

Mochovce Units 3&4 110kV and 400kV transformers

Mochovce Units 3&4 DC batteries

Mochovce Units 3&4 Full-scope simulator

43

Mochovce Units 3&4 Reactor postament

44

Mochovce Units 3&4 Assembling of fresh fuel storage

Mochovce Units 3&4 Ionising chamber - measurement of neutron flux

Mochovce Units 3&4 Welding activities

47

Mochovce Units 3&4 Fan cooling towers of essential service water

Mochovce Units 3&4 Cable trays in Unit 3

EMO & EBO New fire truck with HP pump - 1 per each unit

50

EMO & EBO New mobile 0,4 kV dieselgenerator - 1 per each unit

Research & Development

Creation of Hi-Tec clusters:

•Slovak Academy od Sciences

•Slovak Technical University

•VUJE

Overall development of R&D skills and new scientific-related workforce

Supply chain

Experience of Slovak companies and transfer of innovative products and technologies will help:

•Develop know-how

•Develop innovativeness in companies

Project implementation

Experience with basic design development, rendering of engineering services and project management during completion of MO34 will facilitate the participation of Slovak companies in other nuclear and other energy projects in Europe and worldwide

Operations

Services related to operations of NPP, i.e. facility management, service, security will be supplied by Slovak companies

Mochovce Units 3&4 Value added for Slovakia and the region

93%

CO2 free

27%

Produc-tion

share

57%

Slovak suppliers

19%

42%

39%

10.000 jobs

15%

42%

42% € 5.2 bn*

for SVK economy

DIRECT

INDIRECT

INDUCED *7-year investment

Mochovce Units 3,4 More than a new nuclear source

... max. 0,01% of natural background radiation

or like eating 3 bananas more every year ...

Average dose-rate contribution Living near to NPP | 4-hour flight | natural background

New visitor centre at Mochovce Opening in June 2014

I’ll be happy to answer your questions

More info at www.seas.sk

Thank you for your attention